$set¶
-
$set
¶ Use the
$set
operator to set a particular value. The$set
operator requires the following syntax:This statement updates in the document in
collection
wherefield
matchesvalue1
by replacing the value of the fieldfield1
withvalue2
. This operator will add the specified field or fields if they do not exist in this document or replace the existing value of the specified field(s) if they already exist.